How I can to change store using grid?

[pay_me_pain]

My mode

Ext.define('MyApp.model.User', {
    extend: 'Ext.data.Model',

fields: [
        'firstName', 'lastName', 'phoneNumber', 'email'
],

});

My store

Ext.define('MyApp.store.Users', {
    extend: 'Ext.data.Store',

model: 'MyApp.model.User',

alias: 'store.users',

requires: [
        'MyApp.model.User'
],

data: [
          {   firstName: 'Jean',      lastName: 'Grey',       phoneNumber: '(321) 341-2312',      email: '[email protected]' },
{   firstName: 'Phillip',   lastName: 'Fry',        phoneNumber: '(421) 321-5531',      email: '[email protected]'},
{   firstName: 'Peter',     lastName: 'Quill',      phoneNumber: '(412) 323-9312',      email: '[email protected]' },

],
});

My grid.

Ext.define('MyApp.view.main.UserList', {

    extend: 'Ext.grid.Panel',

alias: 'widget.mainUserList',

requires: [
        'Ext.form.field.Text',
'Ext.grid.column.RowNumberer',
'Ext.grid.plugin.RowEditing',
'MyApp.store.Users'
],

plugins: [
        {
            ptype: 'rowediting',
clicksToEdit: 2,
},
],
selType: 'rowmodel',

store: {
        type: 'users',
},
    
tbar:
        [
            {
                text: 'Add Plant',
handler: 'addOnButtonClick',
},
],
columns: [
        {
          xtype: 'rownumberer',
},
{
            text: 'Name',
dataIndex: 'firstName',
flex: 1,
editor:
                {
                    xtype: 'textfield',
allowBlank: false,
}
        },
{
            text: 'Surname',
dataIndex: 'lastName',
flex: 1,
editor:
                {
                    xtype: 'textfield',
allowBlank: false,
}
        },
{
            text: 'Phone Number',
dataIndex: 'phoneNumber',
flex: 1,
editor:
                {
                    xtype: 'textfield',
allowBlank: false,
}
        },
{
            text: 'eMail',
dataIndex: 'email',
flex: 1,
editor:
                {
                    vtype: 'email',
allowBlank: false,
}
        },
],
});

I can to change on lochalhost, but app doesn't save my changes. Can u help me?

[praveensaini23]

You can define proxy to store for saving its data and call sync method of store to save all data at one shot.
OR
You can call each record save proxy once you are done with all changes for a particular row.